71 char host[1024], path[1024], url[1024], announce_addr[50] =
"";
73 int port = 9875, base_port = 5004,
i,
pos = 0, same_port = 0, ttl = 255;
77 socklen_t addrlen =
sizeof(localaddr);
86 path,
sizeof(path), s->
url);
91 option_list = strrchr(path,
'?');
95 port = strtol(buf,
NULL, 10);
98 same_port = strtol(buf,
NULL, 10);
101 ttl = strtol(buf,
NULL, 10);
104 av_strlcpy(announce_addr, buf,
sizeof(announce_addr));
108 if (!announce_addr[0]) {
116 if (ai->ai_family == AF_INET) {
118 av_strlcpy(announce_addr,
"224.2.127.254",
sizeof(announce_addr));
119 #if HAVE_STRUCT_SOCKADDR_IN6 120 }
else if (ai->ai_family == AF_INET6) {
124 av_strlcpy(announce_addr,
"ff0e::2:7ffe",
sizeof(announce_addr));
129 "address family\n", host);
176 "?ttl=%d&connect=1", ttl);
186 if (getsockname(udp_fd, (
struct sockaddr*) &localaddr, &addrlen)) {
191 #
if HAVE_STRUCT_SOCKADDR_IN6
206 #if HAVE_STRUCT_SOCKADDR_IN6 215 memcpy(&sap->
ann[pos], &((
struct sockaddr_in*)&localaddr)->sin_addr,
216 sizeof(
struct in_addr));
217 pos +=
sizeof(
struct in_addr);
218 #if HAVE_STRUCT_SOCKADDR_IN6 220 memcpy(&sap->
ann[pos], &((
struct sockaddr_in6*)&localaddr)->sin6_addr,
221 sizeof(
struct in6_addr));
222 pos +=
sizeof(
struct in6_addr);
227 pos += strlen(&sap->
ann[pos]) + 1;
236 pos += strlen(&sap->
ann[pos]);
262 if (ret < 0 && ret !=
AVERROR(ECONNREFUSED))
273 .priv_data_size =
sizeof(
struct SAPState),
void av_url_split(char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url)
Split a URL string into components.
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int64_t start_time_realtime
Start time of the stream in real world time, in microseconds since the Unix epoch (00:00 1st January ...
int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options, const char *whitelist, const char *blacklist, URLContext *parent)
Create an URLContext for accessing to the resource indicated by url, and open it. ...
AVIOInterruptCB interrupt_callback
Custom interrupt callbacks for the I/O layer.
int ffurl_write(URLContext *h, const unsigned char *buf, int size)
Write size bytes from buf to the resource accessed by h.
#define AVIO_FLAG_WRITE
write-only
void ff_network_close(void)
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
AVOutputFormat ff_sap_muxer
static int sap_write_packet(AVFormatContext *s, AVPacket *pkt)
int ff_network_init(void)
miscellaneous OS support macros and functions.
AVStream ** streams
A list of all streams in the file.
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
char * protocol_whitelist
',' separated list of allowed protocols.
#define AV_LOG_VERBOSE
Detailed information.
int av_sdp_create(AVFormatContext *ac[], int n_files, char *buf, int size)
Generate an SDP for an RTP session.
int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info)
Attempt to find a specific tag in a URL.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVDictionary * metadata
Metadata that applies to the whole file.
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
char * url
input or output URL.
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
static int sap_write_close(AVFormatContext *s)
int ffurl_get_file_handle(URLContext *h)
Return the file descriptor associated with this URL.
int ffurl_closep(URLContext **hh)
Close the resource accessed by the URLContext h, and free the memory used by it.
int64_t av_gettime(void)
Get the current time in microseconds.
int ff_url_join(char *str, int size, const char *proto, const char *authorization, const char *hostname, int port, const char *fmt,...)
char * av_strdup(const char *s)
Duplicate a string.
static int sap_write_header(AVFormatContext *s)
AVIOContext * pb
I/O context.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s, AVStream *st, URLContext *handle, int packet_size, int idx)
void * priv_data
Format private data.
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
char * protocol_blacklist
',' separated list of disallowed protocols.
int max_packet_size
if non zero, the stream is packetized with this max packet size
unbuffered private I/O API
uint32_t av_get_random_seed(void)
Get a seed to use in conjunction with random functions.
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
This structure stores compressed data.
int avio_closep(AVIOContext **s)
Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL...
#define AV_NOPTS_VALUE
Undefined timestamp value.
void * av_mallocz_array(size_t nmemb, size_t size)